Hub-attaching device



(No Model.) '2 Sheets-Sheet 1.

' A. P. OLMSTBAD.

HUB ATTAGHING DEVICE. No. 394,876. Patented Dec. 18, 1888. 4

WLHLQLSSQS' (No Model.) 2 Sheets-Sheet 2.

- A P OLMSTEAD HUB ATTAGHING DEVICE.

No. 394,876. Patented Dec. 18, 1888..

n PETERS. mmmw m Wnhinxlon. ma

UNiTnn STATES PATENT Trice.

ALBERT P. OLMCTEAD, OF TROY, ASSIGNOR OF ONE-HALF TO ALEXANDER T.PORTER, OF EST TROY, NEW YORK.

HUB-ATTACHING DEVICE.

SPECIFICATION forming part of Letters Patent No. 394,876, dated December18, 1888.

Application filed July 3, 1888. Serial No. 278,922. (No model.)

To aZZ whom it may concern:

Be it known that l, ALBERT P. OLMSTEAD, a resident of the city of Troy,in the county of Rensselaer and State of New York, have invented certainnew and useful Improvements in lllib-Attaching Devices; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, that will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in hubattaching devices; and itconsists of the novel construction and combination of parts hereinafterdescribed, and pointed out in the claims.

Figure 1 ot' the drawings is a central longitudinal section of avehicle-wheel box, in closed axle-spindle, and attaching devices. 1 ig.2 is a plan view of the axle-spindle detached. Figs. 3 and 4 arerespectively plan and end views of the wheel-hub box detached. Figs. 5and o are respectively end and side views of the spindle-inclosingsleeve. Figs. 7 and S are respectively end and side views of theinteriorly-threaded retaining sleeve or collar. Fig. 9 is an interiorend view of the box-flange and lock-screw detached from the box andthimble. Fig. 10 is a side view of the loclescrew detached from allother parts.

The invention which comprises the subjectmatter of this application isan improvement upon the construction shown and described in my priorapplication, Serial No. 267,340, filed March 16, 1888, to whichreference may be had.

A represents the axle-spindle, and 13 the box, which is inserted in thewheel-hub B (shown by dotted lines) in the usual manner.

The axle may have dust-excluding flanges A and a longitudinallubricantreceiving groove, A The end of the spindle is reduced indiameter to form the shoulders a and b, the portion reduced to thesmaller diameter being threaded at its end, as shown. A thimble, C,interiorly threaded at its outer end and provided interiorly with theintcriOrly-projecting annular flange (7, is slipped upon the smaller endof the spindle in such a manner that its inner end finds'a bearing uponthe shoulder b and the inner side of its flange a bearing upon theshoulder a. The sleeve or collar D, interiorly threaded and havingwrenchnotches D, is then screwed upon the threaded part of the spindle,passing within the outer end of the thimble until its inner end finds abearing upon the outer side ot the thimbleflange, substantially as shownin Fig. 1, and all substantially as described in my said priorapplication, except that, as therein shown and described, the thimblewas exteriorly instead of interiorly threaded, and the outer ends of thethimble, collar, and spindle were about flush with each other. The hubwas secured to the thimble by a cap-nut, which screwed onto the thimbleand at the same time upon the hub.

In my improved deviceI provide the hub, or the box B, inserted therein,with an annular interiOrly-projecting flange, d. The inner diameter ofthis flange is the same as that of the thimble C, and the flange isthreaded interiorly and correspondingly with the thimble. The flange maybe integral with the box, or it may be provided with aninteriorlythreaded sleeve, (1, adapted to be screwed onto thecorrespondingly exteriorly-threaded end of the box, as shown in Fig. Thelockscrew S is adapted to fltboth the thimble and the box-flange and bescrewed therein, as shown in Fig. 1. The screwhas an oil-chamber, Sopening interiorly, and is provided with a flange, S, adapted to engagewith the box-flange.

The spindle is prepared for receiving the hub and box by slipping thethimble C to place and sci-caving the collar D upon the threaded end ofthe spindle,as before explained. The hub and box, provided with theflange (Z, are then slipped upon the axle-spindle to the desiredposition and securelylocked therein by screw S, screwed into the flangeand the thimble, as shown in Fig. 1. To prevent the thimble fromrevolving while the screw is being inserted in it, I make it exteriorlyof an octagonal or other angular form,

LII

as shown in Figs. and t3, and make the interior olf the hub orbox ot'correspond ing t'orm as shown in Fig. I at 13 By having a eonsideraljilenumber of plane sides the wheel can be slipped onto the axle andthimblein alnmst any position.

The position of the hub relatively to the axle can be adjusted byadjusting the position of the screw in the box-flange before it entersthe thimble.

The screw may have a projecting rectangular head, as shown by dottedlines 0 in Fig. '1, adapted to be turned by a wreueh, or it may have ascrew-driver sloi,

To remove the hub from theaxle, it is only necessary to unscrew theloek-serew until it is withdrawn from the thimble whereupon the hub canhe slipped off or onto the axle.

It will be observed that the thimble and screw turn with the box andhub, the inner end of the thimble and side of the thimbleflange bearingupon the spindle-shoulders I) and (z. \Vhen these parts wear away tobecome loose, they can easily be rezuljusted to tighten them bysert-sving the collar D farther onto ihe spindle, or removing the collarand inserting between it and the thimble a washer of the desiredthickness, at the same time advancing the lock-screw the same distancethrough the flange d before it enters the thinr ble, whereby therelative posiiion ot the box and hub remains unchanged, or by varyingthe adjustment of the screw the relative position of the box can bechanged. as desired to compensate for wear. The look-screw provided witha flange, S, which is forced into engagement with the flange (1 anddraws the tlnreads upon the flange and screw into such close engagementas to effectually lock the parts which connect the box and thimble andprevent their relative dis} Jlaeement-.

\Vhat I claim as new, and desire to secure by Letters Patent, :is

1. In a hub-attaching deviee, the combination, with aniiiteriorly-threaded thimble secured to revolve upon the axle and a hubrevolnble with said th i mble and n'ovided with an interiorlyn'ojeetingflange threaded to eorres nmd with the threaded part of the thhnble, ot'a look-screw threaded to correspolul with and lit the threads of thethimble and hub or box flange substantially as described.

2. In a huh-attaehing device the combination, with a thimble secured torevolve upon the axle and having an angular exterior surface, of athimble-iilelosing hub-box having its inner inclosing-surface of a sizeand form to receive and fit the exterior angular surface of thethiinble, and means for securing the thimble within the box,substantially as described.

In testimony whereof I have hereunto set my hand this 21st. day of June,1888.

ALBERT P. OLMSTEAD.

